Antistatic polysulfonamide/carbon nano-tube composite material and preparation method thereof

A polysulfone amide and carbon nanotube technology, which is used in the manufacture of conductive/antistatic filaments, single-component copolyamide rayon, etc., can solve the problem of nanotechnology polysulfone amide/carbon nanotube composite materials. , The problems of composite materials of polysulfone amide and nanoparticles are rarely seen, and the effects of excellent high temperature dimensional stability, low cost and strong operability are achieved.

Inactive Publication Date: 2012-04-18
SHANGHAI UNIV OF ENG SCI
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  • Application Information

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Problems solved by technology

[0003] At present, most of the domestic research on polysulfoneamide fibers focuses on the research of thermal properties, and the research on improving its properties is also mainly focused on improving the dyeability of polysulfoneamide fabrics and optimizing its processing technology. There have been reports on the preparation of composite materials of polysulfoneamide and nanoparticles by nano-modification technology, and no research on the preparation of polysulfoneamide / carbon nanotube composite materials by nanotechnology

Method used

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  • Antistatic polysulfonamide/carbon nano-tube composite material and preparation method thereof
  • Antistatic polysulfonamide/carbon nano-tube composite material and preparation method thereof
  • Antistatic polysulfonamide/carbon nano-tube composite material and preparation method thereof

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Embodiment 1

[0028] Embodiment 1: Preparation of polysulfone amide / carbon nanotube composite fiber

[0029] Specific steps are as follows:

[0030] 1) Preparation of carbon nanotube solvent dispersion:

[0031] Weigh 0.12 g of carbon nanotubes and disperse them in 3 mL of dimethylacetamide solvent; the above solvent dispersion is subjected to ultrasonic blending treatment for 60 min to uniformly disperse the carbon nanotubes in the dimethylacetamide solvent to form a Dispersive carbon nanotube solvent dispersion;

[0032] 2) Weigh 100g of polysulfone amide spinning solution, add the above-mentioned carbon nanotube solvent dispersion into the conical flask, carry out shearing mechanical stirring at a speed of 10000r / min for 30min, and then under the ultrasonic frequency of 30-40KHz Ultrasonic blending was carried out for 90 minutes to prepare polysulfoneamide / carbon nanotube composite spinning solution;

[0033] 3) Wet spinning is carried out by using a single-hole small wet spinning dev...

Embodiment 2

[0040] Embodiment 2: Preparation of polysulfone amide / carbon nanotube composite film

[0041] The polysulfone amide nanocomposite film was prepared by using the SJT-B desktop digital display homogenizer, and the specific steps are as follows:

[0042] 1) Set the film-making conditions of the instrument: 2000RPM low-speed operation for 5s and 4000RPM high-speed operation for 20s;

[0043] 2) Take an appropriate amount of the composite material spinning solution obtained in Example 1, put it on the substrate in the glue leveling table after standing for defoaming, and first run at a low speed of 2000RPM for 5s to spread the spinning solution with the number of revolutions per minute;

[0044] 3) After the set time, it will automatically switch to a high-speed operation with a revolution per minute of 4000RPM for 20s to make the spinning solution form a film with uniform thickness on the substrate;

[0045] 4) Place the substrate in the air for 30 minutes to evaporate the solven...

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Abstract

The invention provides an antistatic polysulfonamide / carbon nano-tube composite material and a preparation method thereof. The polysulfonamide / carbon nano-tube composite material is prepared by adopting a solution blending method in a physical blending technology, taking polysulfonamide as a matrix and adding carbon nano-tubes with different mass fractions, and is prepared into composite fibers or composite films. According to the invention, an ultrasonic blending technology is utilized so that a small amount of the carbon nano-tubes can be uniformly dispersed in the polysulfonamide matrix in nano-scale; as nano particles with excellent electric conductivity, the carbon nano-tubes ensure that the prepared antistatic polysulfonamide / carbon nano-tube composite material has good antistatic properties, and the specific surface resistivity of the composite material reaches 104 to 1,011 omega; moreover, the rigidity and excellent high-temperature dimensional stability, heat resistance and the like of the carbon nano-tubes can be perfectly combined with the tenacity and processability of an organic polymer. The preparation method provided by the invention is simple and convenient in process, strong in operability and low in cost.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to an antistatic polysulfoneamide / carbon nanotube composite material and a preparation method thereof. Background technique [0002] As a new type of textile material, polysulfoneamide fiber has excellent heat resistance, thermal stability and flame retardancy, etc. It is used in the aerospace field, protection under high temperature working environment and other civil fields with flame retardancy requirements. It has important uses in national defense, military affairs and modern industry. However, conventional polysulfoneamide fibers have problems such as high volume specific resistance and poor mechanical properties, which seriously affect their subsequent processing and application in other functional industrial fields. Therefore, how to improve the electrical conductivity and mechanical properties of polysulfoneamide fibers and optimize their comprehensive properties is one ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/80D01F1/09C08L81/10C08J5/18
Inventor 辛斌杰陈卓明吴湘济
Owner SHANGHAI UNIV OF ENG SCI
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